A kind of flame retardant and high temperature resistant epoxy resin composition that can be used for pultrusion molding and preparation method

An epoxy resin and pultrusion molding technology, applied in the field of polymer chemical industry, can solve the problems of lowering the glass transition temperature, difficulty in use, and sharp increase in resin viscosity, etc., and achieve the effect of Tg improvement, good cost advantage, and superior high temperature resistance

Active Publication Date: 2016-02-24
江苏绿材谷新材料科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the base materials disclosed in this patent are limited to unsaturated resins, and adding too much of ordinary unmodified aluminum hydroxide flame retardant to the epoxy resin system will easily cause compatibility problems, resulting in a sharp increase in resin viscosity But it is difficult to use; for high temperature resistant epoxy resin, the addition of low molecular weight flame retardant phosphate will greatly reduce its glass transition temperature, which does not meet the requirements for high temperature resistant composite materials

Method used

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  • A kind of flame retardant and high temperature resistant epoxy resin composition that can be used for pultrusion molding and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 3 parts of E-51, 2 parts of NPEF-170, 5 parts of GE-30 and 90 parts of CEL-2021P were prepared according to the above resin A preparation method to obtain resin A component; 55 parts of methyl hexahydrophthalic anhydride, 12 parts Phenone tetracarboxylic dianhydride, 8 parts of PFNH9880, 23 parts of Ricon-130MA-13, 1.2 parts of polymethylphenylsiloxane and 0.8 parts of iron acetylacetonate were prepared according to the above method of curing agent B to obtain curing agent group B points; 99 parts of ultra-fine particle size magnesium hydroxide LHN-01, 0.8 parts of CG-560, and 0.2 parts of stearic acid were prepared according to the method of the above-mentioned flame retardant modifier C component to obtain the C component.

[0057] Mix components A, B and C in a ratio of A:B:C=100:128:20 to obtain a flame retardant and high temperature resistant epoxy resin composition. Gel test, viscosity test, pot life test, exothermic peak test; prepare resin composition cast body ...

Embodiment 2

[0063] 2 parts of E-51, 20 parts of NPCN-704, 2 parts of GE-30 and 76 parts of TDE-85 were prepared according to the above resin A preparation method to obtain resin A component; 69 parts of methyl endomethylene tetrahydro Phthalic anhydride, 7 parts of benzophenone tetracarboxylic dianhydride, 1 part of PFNH9880, 20 parts of Ricon-130MA-13, 2 parts of polymethylphenylsiloxane and 1 part of iron acetylacetonate were prepared according to the method of curing agent B above. Curing agent component B: 98 parts of ultra-fine particle size magnesium hydroxide LHN-01, 1 part of CG-561, and 1 part of oleic acid were prepared according to the method of the above-mentioned flame retardant modifier C component to obtain C component.

[0064] Mix components A, B and C with a ratio of A:B:C=100:152:30 to obtain a flame retardant and high temperature resistant epoxy resin composition. Gel test, viscosity test, pot life test, exothermic peak test; prepare resin composition cast body and car...

Embodiment 3

[0070] 25 parts of E-51, 5 parts of NPEF-170, 8 parts of GE-30 and 62 parts of CEL-2021P were prepared according to the above resin A preparation method to obtain resin A component; 70 parts of methyl endomethylene tetrahydro Phthalic anhydride, 5 parts methyltetrahydrophthalic anhydride, 5 parts pyromellitic dianhydride, 2 parts PFNH9880, 15 parts Ricon-130MA-13, 1.5 parts polymethylphenylsiloxane, and 1.5 parts 2-ethyl-4 -Methylimidazole is prepared according to the above-mentioned curing agent B preparation method to obtain the curing agent B component; 95 parts of ultra-fine particle size magnesium hydroxide LHN-01 and 3 parts of CG-561, 2 parts of stearic acid are flame-retardant according to the above The method of modifier C component is prepared to obtain C component.

[0071] Mix components A and B with a ratio of A:B:C=100:119:100 to obtain a flame-retardant and high-temperature-resistant epoxy resin composition. Take an appropriate amount of samples for a gel test a...

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Abstract

The invention discloses a flame-retardant high temperature-resistant epoxy resin composition capable of being used for pultrusion and a preparation method thereof. The flame-retardant high temperature-resistant epoxy resin composition capable of being used for pultrusion comprises three components of A, B, and C, and is characterized in that the A component comprises diglycidyl ether epoxy resin, cycloaliphatic epoxy resin and an epoxy resin active diluents; the B component comprises cycloaliphatic acid anhydride, arene poly(acid anhydride), a thermoplastic phenolic resin curing agent, a maleic anhydride-grafted rubber flexibilizer, a polysiloxane toughening modifier, and an epoxy resin curing accelerator; the C component comprises an inorganic fire retardant which has an ultrafine particle size and is subjected to surface modification by a silane coupling agent and a hydrophobic modifier; the weight ratio of the A, B, and C components is that A:B:C=100:50-250:20-150.

Description

technical field [0001] The invention relates to a flame-retardant and high-temperature-resistant epoxy resin composition and a preparation method that can meet the pultrusion molding process to prepare composite materials, and relates to the field of polymer chemical industry. The composition of the present invention not only has excellent high temperature resistance, but also maintains the balance of process performance, impact toughness and comprehensive performance, and the composite material prepared by using the composition not only has good mechanical properties, but also has good flame retardancy, and can be Long-term use in harsh high-temperature environments. Background technique [0002] The molding of composite materials places high demands on the technological performance of the resin. The pultrusion molding process of composite materials requires that the matrix resin has the characteristics of low viscosity, long pot life, high reaction speed and good toughnes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L51/04C08L83/04C08G59/42C08G59/62C08K9/06C08K9/04C08K3/22
Inventor 李炳泉吴智深
Owner 江苏绿材谷新材料科技发展有限公司
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